Van top



FIG. 1 is a perspective view of the top, front and right side of a van top showing my new design, it being understood that the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged left side elevation view thereof;

FIG. 4 is an enlarged front elevation view thereof; and,

FIG. 5 is an enlarged rear elevation view thereof. 

The ornamental design for a van top, as shown and described. 